Specific, non-specific
Adam Gadahn, identified as an environmentalist and Mohammedan (redundant, I know) says the following:

Yesterday London and Madrid, tomorrow Los Angeles and Melbourne, Allah willing. And this time don't count on us demonstrating restraint or compassion.

We are Muslims, we love peace, but peace on our terms. We love peace, but when the enemy violates that peace or prevents us from achieving it, then we love nothing better than the heat of battle, the echo of explosions and slitting the throats of the infidels.

The mayor of Los Angeles says:

We have no specific credible threats.

Wrong, mayor. Dead wrong. See, lemme splain you something, by comparing with Christians.

When a Christian says "Love thy neighbor", it's not a threat; he's just stating the basic purpose and conversion method of Christianity.

But when a Christian says "Hey, wanna come to church with me this Sunday?" that's a specific threat. It means he's going to keep throwing friendliness and Bible verses at you until you submit and come to church. Unless you say No convincingly enough.

Okay, now here's the Mohammed side of the comparison.

When a Mohammedan says "I will bomb and slit the throats of all Crusaders and infidels", it's not a threat; he's just stating the basic purpose and conversion method of Mohammedanism.

But when a Mohammedan says "Yesterday London and Madrid; tomorrow Los Angeles and Melbourne", that's a specific threat against Los Angeles. See, he actually mentioned your city. It means he's going to bomb you and slit your throats until you're all dead. The only way to say No is to round up all the Mohammedans in town RIGHT NOW and grill them, by whatever means necessary, until you get specific information about the threat. Then you keep them rounded up. Hint: you might start with Gadahn's father, since you know where he is.

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Update: Power outage, cause still undetermined. Betcha $100 that the employee who 'accidentally' cut the wire will have a name beginning with Mo or Al.

And just plunking this down for the record: Last night (Sun) about 10 PM, there was a very brief outage here in Spokane. It struck me as slightly odd at the time, because it didn't behave like the usual outage caused by a car hitting a pole or a squirrel committing suicide.... Those outages tend to affect only one part of town, and have a sort of three-blink rhythm. This one was a single blink, and it shut down the TV stations as well, which are at the opposite corner of town from my house. Testing, maybe? However, there is a major solar flare this week, which could account for any or all outages.
  ¶ 7:20 AM